Window film can be used on double glazed windows, but there are certain considerations and potential risks to be aware of…
- Seal Damage – Applying window film to double glazed windows may void the manufacturer’s warranty or compromise the integrity of the window seals if not installed correctly. Improper installation techniques or using the wrong type of film can lead to seal damage, which may result in moisture infiltration, reduced insulation properties, or fogging between the glass panes.
- Thermal Stress – Certain types of window film, particularly those with a high solar heat rejection rate, can potentially increase thermal stress on the glass panes of double glazed windows. This increased stress may lead to glass breakage or seal failure if the windows are not designed to accommodate the additional heat load.
- Reduced Insulation – Some window films may interfere with the insulating properties of double glazed windows by trapping heat between the film and the glass surface. This can lead to reduced energy efficiency and potentially negate the benefits of the double glazing.
- Moisture Trapping – Improperly installed window film may trap moisture between the film and the glass, leading to condensation, mold growth, or damage to the window frame or surrounding structures. Proper installation techniques and ensuring sufficient ventilation are essential to minimize this risk.
While window film can be applied to double glazed windows under certain conditions, it’s crucial to consult with a professional installer who is experienced in working with double glazed windows and understands the specific requirements and limitations of the window system. Choosing a high-quality film and following proper installation techniques can help mitigate potential risks and ensure optimal performance and longevity of both the film and the windows.
